Which of the following is true about pili in bacteria?

Which of the following shows the correct order of levels of organisation from complex to simple?

The use of antibiotics is effective when

Water is the most abundant and essential component of any cell because it is

An enzyme increases the rate of a biochemical reaction by

Feedback inhibition of an enzyme is influenced by

The diagram shows the fluid mosaic model of the cell membrane. Which of the following is correct about X and Y?

Cell fractionation is the most appropriate procedure for isolating

A mule is produced as a result of a cross between a donkey and a mare. It is unable to continue its own generation because the parents are of